def calculate_range(value, factor=1.05):
    print(f"输入值: {value}万元")
    lower_bound = round(value / factor, 2)
    upper_bound = round(value * factor, 2)
    print(f"范围: {lower_bound}万元 ～ {upper_bound}万元")
    return lower_bound, upper_bound

# 示例
lower, upper = calculate_range(502)
lower, upper = calculate_range(102)
lower, upper = calculate_range(91)
lower, upper = calculate_range(43)
lower, upper = calculate_range(14)
lower, upper = calculate_range(5)
